One thing that could help everybody understand the kind of things (i.e. sensors) that the members of the XG care about is for people to come to the meeting with some example sensor descriptions (in whatever format they come). It will certainly help in understanding the requirements of the sensor ontology if we have a range of sensors to discuss.
So bring along whatever information you have describing the sensors you work with, or just the ones that you think are interesting.
See you all at the meeting in a few days.
Michael